/// <summary>Creates and initializes the rule.</summary>
/// <param name="pHandler">The address of the method implementing the rule.</param>
/// <param name="pArgs">A RuleArgs object.</param>
/// <param name="pPropertyNames">The fields, properties or columns to which the rule applies.</param>
public MultiPropertyRuleMethod(RuleHandler pHandler, RuleArgs pArgs, params string[] pPropertyNames)
: base(pHandler, pArgs)
{
if (pPropertyNames == null || pPropertyNames.Length < 2)
{
throw new ArgumentException("MultiPropertyRules require at least two properties.");
}
mPropertyNames = pPropertyNames;
}
public static bool ObjectRequired(object target, RuleArgs e)
{
if (null == ExtendedReflectionFns.GetPropertyValue(target, e.PropertyName))
{
e.Description =
string.Format(Resources.StringRequiredRule, e.DisplayPropertyName);
return(false);
}
return(true);
}
public static bool StringRequired(object target, RuleArgs e)
{
string value = (string)ExtendedReflectionFns.GetPropertyValue(target, e.PropertyName);
if (string.IsNullOrEmpty(value))
{
e.Description =
string.Format(Resources.StringRequiredRule, e.DisplayPropertyName);
return(false);
}
return(true);
}
public static bool StringMinLength(object target, RuleArgs e)
{
int min = ((MinMaxArgs <Int32>)e).MinValue;
string value = (string)ExtendedReflectionFns.GetPropertyValue(target, e.PropertyName);
if (String.IsNullOrEmpty(value) || (value.Trim().Length < min))
{
e.Description = String.Format(
Resources.StringMinLengthRule, e.DisplayPropertyName, min.ToString());
return(false);
}
return(true);
}
public static bool StringMaxLength(object target, RuleArgs e)
{
int max = (int)((MinMaxArgs <Int32>)e).MaxValue;
string value = (string)ExtendedReflectionFns.GetPropertyValue(target, e.PropertyName);
if (!String.IsNullOrEmpty(value) && (value.Length > max))
{
e.Description = String.Format(
Resources.StringMaxLengthRule, e.DisplayPropertyName, max.ToString());
return(false);
}
return(true);
}
/// <summary>Creates and initializes the rule.</summary>
/// <param name="pHandler">The address of the method implementing the rule.</param>
/// <param name="pArgs">Rule arguments.</param>
/// <param name="pBusinessPropertys">The entity columns to which the rule applies.</param>
public MultiPropertyRuleMethod(RuleHandler pHandler, RuleArgs pArgs, params BusinessProperty[] pBusinessPropertys)
: base(pHandler, pArgs)
{
if (pBusinessPropertys == null || pBusinessPropertys.Length < 2)
{
throw new ArgumentException("MultiPropertyRules require at least two properties.");
}
mPropertyNames = new string[pBusinessPropertys.Length];
for (int i = 0; i < pBusinessPropertys.Length; i++)
{
mPropertyNames[i] = pBusinessPropertys[i].Name;
}
}
private static bool PropertyRequiredHandler(object pTarget, RuleArgs pArgs)
{
PropertyRequiredRuleArgs args = (PropertyRequiredRuleArgs)pArgs;
bool ok = HasValue(pTarget, args);
if (ok)
{
return(true);
}
args.Description =
string.Format(Properties.Resources.StringRequiredRule, args.DisplayPropertyName);
return(false);
}
/// <summary>Rule ensuring that a numeric value is not less than the specified minimum.</summary>
/// <typeparam name="T">Type of the property to validate.</typeparam>
/// <param name="target">Object containing value to validate.</param>
/// <param name="e">Arguments variable specifying the name of the property to validate,
/// along with the min allowed value.</param>
/// <remarks>
/// Converts the arguments to the target type, T, if it can and calls CompareTo.
/// <para>Heavily revised by IdeaBlade.</para>
/// </remarks>
public static bool MinValue <T>(object target, RuleArgs e)
{
T min = (T)((MinMaxArgs <T>)e).MinValue;
object value = ExtendedReflectionFns.GetPropertyValue(target, e.PropertyName);
bool result = Compare <T>(value, min) >= 0;
if (!result)
{
e.Description =
string.Format(Resources.MinValueRule, e.DisplayPropertyName, min.ToString());
return(false);
}
else
{
return(true);
}
}
public static bool MinMaxValue <T>(object target, RuleArgs e)
{
T min = ((MinMaxArgs <T>)e).MinValue;
T max = ((MinMaxArgs <T>)e).MaxValue;
object value = ExtendedReflectionFns.GetPropertyValue(target, e.PropertyName);
bool ok = true;
if (value != null)
{
ok = (Compare <T>(value, min) >= 0 && Compare <T>(value, max) <= 0);
}
if (ok)
{
return(true);
}
e.Description = String.Format(
Resources.BetweenRule, e.DisplayPropertyName, min.ToString(), max.ToString());
return(false);
}
public static bool IntegerMinMaxValue(object target, RuleArgs e)
{
long min = ((MinMaxArgs <Int64>)e).MinValue;
long max = ((MinMaxArgs <Int64>)e).MaxValue;
object value = ExtendedReflectionFns.GetPropertyValue(target, e.PropertyName);
bool ok = true;
if (value != null)
{
long testValue = Convert.ToInt64(value);
ok = (testValue >= min) && (testValue <= max);
}
if (ok)
{
return(true);
}
e.Description = String.Format(
Resources.BetweenRule, e.DisplayPropertyName, min.ToString(), max.ToString());
return(false);
}
/// <summary>Rule that check that value matches a given regex pattern.</summary>
/// <param name="target">Object containing the data to validate</param>
/// <param name="e">RegExRuleArgs parameter specifying the name of the
/// property to validate and the regex pattern.</param>
/// <returns>False if the rule is broken</returns>
/// <remarks>This implementation uses late binding.</remarks>
public static bool RegExMatch(object target, RuleArgs e)
{
RegExRuleArgs args = (RegExRuleArgs)e;
Regex rx = args.RegEx;
string value = (string)ExtendedReflectionFns.GetPropertyValue(target, args.PropertyName);
// Contra CSLA, rule does NOT fail if there is no entry;
// That test is the job of a "PropertyRequired" rule.
if (value == null || value.Trim() == String.Empty)
{
return(true);
}
if (!rx.IsMatch(value))
{
args.Description =
String.Format(args.MessageTemplate, args.DisplayPropertyName);
return(false);
}
else
{
return(true);
}
}
/// <summary>Rule ensuring an integer value doesn't go below a specified value.</summary>
/// <param name="target">Object containing the data to validate.</param>
/// <param name="e">Arguments parameter specifying the name of the property to validate.</param>
/// <returns><see langword="false"/> if the rule is broken.</returns>
/// <remarks>Re-routed Csla version to MinValue(Of T).</remarks>
public static bool IntegerMinValue(object target, RuleArgs e)
{
return(MinValue <int>(target, e));
}
/// <summary>Creates and initializes the rule.</summary>
/// <param name="pHandler">The address of the method implementing the rule.</param>
/// <param name="pArgs">A RuleArgs object.</param>
public RuleMethod(RuleHandler pHandler, RuleArgs pArgs)
{
mHandler = pHandler;
mArgs = pArgs;
MakeRuleName();
}
/// <summary>Return a rule name from the RuleHandler + RuleArgs.</summary>
internal string MakeRuleName(RuleHandler pHandler, RuleArgs pArgs)
{
return(pHandler.Method.Name + "!" + pArgs.ToString());
}
/// <summary>Creates and adds a RuleMethod to the list of rules to be enforced.</summary>
/// <param name="pHandler">The handler that implements the rule. Should be a static delegate.</param>
/// <param name="args">
/// A RuleArgs object specifying the property name (or group name) and other arguments
/// passed to the rule method</param>
/// <returns>The added RuleMethod.</returns>
/// <remarks>
/// A rule is implemented by a delegate which conforms to the
/// method signature defined by the RuleHandler delegate.
/// </remarks>
public RuleMethod Add(RuleHandler pHandler, RuleArgs args)
{
RuleMethod method = new RuleMethod(pHandler, args);
return(AddX(args.PropertyName, method));
}
/// <summary>Remove a specific rule from the rule list.</summary>
public void Remove(RuleHandler pHandler, RuleArgs args)
{
Remove(pHandler, args.PropertyName);
}
/// <summary>Creates and initializes the rule.</summary>
/// <param name="pHandler">The address of the method implementing the rule.</param>
/// <param name="pPropertyName">The field, property or column to which the rule applies.</param>
public RuleMethod(RuleHandler pHandler, string pPropertyName)
{
mHandler = pHandler;
mArgs = new RuleArgs(pPropertyName);
MakeRuleName();
}